Valve construction for water-closet apparatus.



A. F'JYG 'BEL'L. VALVE CONSTRUCTION FOR WATER CLOSET APPARATUS.

APPLICATION FILED OCT-47. I914.

Patented Nov. 7, 1916.

INVENTOR ATTORNEY- 15115 cm, Pnmaumm WASHING ran in Valve Construction ALBERT AND POBATION OF PENNSYLVANIA.

F. GABELL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO I. X. L. PUMP MANUFACTURING COMPANY, 0F PHILADELPHIA, PENNSYLVANIA, A COB,-

VALVE cons'rnucrroiv rota wA'rna-ctosn'r ArrAnA'rUs.

To all whom it may concern 7 Be it known that I, ALBERT F. GABELL, a citizen of the United States, and a resident of Philadelphia, in the county of Philadelphiaand State of Pennsylvania, have 1nvented certain new and useful Improvements for Water-Closet Apparatus, of which the following is a specification.

My invention relates to improvements in valve construction adapted to be used in connection with water closet apparatus to prevent a back flow of water from the soil pipe or some other pipe having connection with a water closet bowl into the main water sup- P P P One ob ect of my invention 18 to provide a construction which is inexpensive to build but which is eflicient to prevent a back flow of water from a water closet apparatus or soil pipe into the main water supply system.

In the accompanying drawings to which reference should be had for a full and clear understanding of my invention I have illustrated one form of a convenient embodiment thereof but it must be understood that changes in the details of construction within the scope of my claim may be made without departing from my said invention.

In the drawings :Figure 1 is a view partly in side elevation and partly in section of a water closet apparatus and water system provided with my invention; Fig. 2 is a longitudinal sectional view of the particular portion of the apparatus provided with my invention; and Fig. 3 is a similar view showing certain of the parts in different relative positions with respect to each other from that in which they are shown in Fig. 2.

Referring to the drawings, 1 designates a water closet bowl having connection with a soil pipe 2 through which the refuse and waste matter is discharged. 3 designates a flush tank or chamber adapted to receive water through the upright portion 4 of the water supply pipe. From the said chamber 3 the water may be discharged through the connections at 5 into the water closet bowl 1 for the purpose of flushing and cleansing the latter. The water is permitted to flow from the chamber 3 into the bowl by means of suitable valve mechanism (not shown) Specification of Letters Patent.

Patented Nov. 7, 1916.

Application filed October 7, 1914. Serial No. 865,438/

9 is lowered and raised the rod 7 is caused to move in and out and thereby control the flow of water into the bowl 1 from the chamber 3. Water is permitted to enter the upright portion 4 of the water supply pipe from the outside horizontal portion 10 thereof by meansof a valve construction including what may be termed a supporting part 11 having connection with the lower end of a rod 12 which extends upwardly into operative relation to the inner end of the rod 7, such relation not being shown, however, in the drawings.

For ascertaining more fully the manner of operating and reciprocating the rod 12 longitudinally in the pipe 4 reference may be had to the pending application of William U. Grifliths, filed September 2nd, 1914, Serial No. 859,741.

The central portion of the supporting part 11 is hollow as shown and such hollow space communicates at its opposite ends with transverse openings 13 through the member 11. The opposite end portions 15 and 16 of the member 11 are provided with longitudinal openings 17 extending therethrough and which communicate with the transverse openings 13. Through these openings 17 and the central hollow space in the member 11 a rod 18 extends, the lower end of which is provided with a valve washer 18 which is adapted to close the opening 19 from the portion 10 of the main water supply pipe into the upright portion 4 thereof. The upper end of the rod 18 is provided with a head 20 which is adapted to contact with the upper end of the member 11 in case it should be desired to remove the valve structure entirely from the tube 4 by drawing the same upwardly through the said tube.

In order. that no water may be allowed to remain in the pipe 4 to befrozen, in case the temperature should be low enough to cause freezing thereof, I have provided the usual waste pipe 25 through which the water may pass from the tube 4 into the soil pipe 2..

Heretofore it has been ,the practice to provide in the said waste pipe 25 a check valve to prevent the possibility of water flowing through the waste pipe 25 under back pressure into the water supply pipe .4, and thence into the main supply pipe 10. It has been found, however, that such valve very quickly corrodes and becomes roughened so that it is ineffective to prevent the back flow of water through the said pipe. It is the object, therefore, of my invention to provide a construction which under any and all circumstances will prevent such back flow from passing into the water supply system.

Assuming that the soil pipe 2 should in some manner be clogged and closed against the passage of water therethrough and also assuming that at such time the seat 9 is for a time depressed so as to lift the tubular rod 12 together with the part 11 secured-to the lower end thereof into the position indicated in Fig. 3 of the drawings, and further assuming that at such time the spigot at 30 is opened to draw water into the sink or receptacle 31, then it might and probably would happen that the backpressure of the water would tend to cause a backward flow of the same through the waste pipe 25. The fit of the member 11 within its bearing is such that the water would readily pass from the waste pipe 25 into the portion of the passage-way surrounding the said part 11 and unless some means were employed to prevent would pass into the pipe 10 and thence into the sink or receptacle 31. This cannot happen, however, in the construction illustrated and embodying my invention in which the weight of the valve 18 and the rod 18 supporting the same tend to hold the said valve down upon the valve seat surrounding the opening 19. It will be understood, therefore, that the very moment that the back pressure of the water in the waste pipe 25 and in the pipe 4 becomes greater Copies of this patent may be obtained for five cents each, by addressing the than the pressure in the supply pipe 10 the valve 18 would be closed so as to prevent a back flow of water into the pipe 10. In that Way I prevent completely and effectively the back flow of water from the water closet apparatus into the pipe 10, or a similar pipe, and from the latter into a receptacle 31.

I claim In mechanism of the the combination of a water supply pipe, a waste pipe for discharging water from a portion of said pipe, a longitudinally movable rod situated in said water supply pipe provided with a valve at its lower end for closing the outlet of said waste pipe when the said rod is in raised position, a valve for controlling the passage of water through the said supply pipe said valve having a stem which extends upwardly through the said first-mentioned valve and which has slidable connection with the said rod, the lower end of the first-mentioned valve or an extension therefrom normally resting against the said second-named valve to hold it in closed position, and means whereby the said rod may be raised to move the firstnamed valve into closed position and to release the second-named valve whereby the latter may be opened by the pressure of the water against the under side thereof, said last-mentioned valve being adapted to be closed in case the back pressure of the water should be greater than the pressure of water against the underneath side thereof while the said rod is in raised position.

In testimony that I claim the foregoing as my invention, I have hereunto signed my name this 6th day of October, A. D. 1914.

ALBERT F. GABELL.

V In the presence of FLORENCE DEACON, CARRIE E. KLEINFELDER.

character described,

Commissioner of Patents,

Washington, D. G. 

